USB Single Port Serial Adapters
Connect serial peripherals with USB Single Port Serial
Adapters
Quatech USB Single Serial Port Adapters are easily
configured to enable the continued use of legacy devices
without making any changes to the applications written for
them. The adapters enumerate themselves as standard
COM ports making the USB interface completely
transparent to software.
Quatech’s USB Single Port Serial Adapters are based on
the idea that taking advantage of new technology should
not necessitate abandoning legacy devices and the
applications written for them.
5675 Hudson Industrial Parkway * Hudson, OH 44236
1.800.553.1170 * +1 330.655.9000 * www.quatech.com
Rev C
2/2008
Upgrade to USB connectivity without replacing peripheral hardware or
application software
USB SINGLE PORT SERIAL ADAPTER SPECIFICATIONS
Ordering Information
Bus Interface
USB 2.0 High Speed
OS Support
Windows 2000/XP/Vista and Linux support
Data Rate
Up to 921.6 kbps (max)
Serial Ports Provided: 1
USB Ports Required: 1
UARTS
1024-byte FIFOs for transmit and receiveFIFOs
Transceiver:
SP211HB
Differential Driver Output: N/A
High Input: N/A
Low Input: N/A
Driver Rise/Fall Time: 5ns (min), 20ns (typ), 25ns
(max)
Driver Input to Output Delay: N/A
Receiver Input to Output Delay: N/A
RS-232 Output
Voltage Swing: ±5V (min), ±5.4V (typ)
RS-232 Input
Voltage Range: -15V (min), +15V (max)
Input Threshold Low: 0.6V (min), 1.0V (typ)
Input Threshold High: 1.5V (max), 2.4V (typ)
IND Option: Surge suppression applied to each line
that is capable of sustaining up to 40A peak, 8 x 20ìs
transient surges, a clamping voltage of 30V and a
peak energy dissipation of 0.1 Joules.
Environment
Operating: 0° to 70°C
Storage: -50° to 80° C
Humidity: 10% to 90%
Power Requirements
Bus-powered device, no external power supply
required
Suspend power: < 500 ì A
Unconfigured power: < 100 mA
Configured power: < 500 mA
Connectors
DB-9 male
Certifications
CE, FCC Class B, RoHS & WEEE Compliant
Model Interface
SS-USB-100 RS-232 with cable
SSU2-100 RS-232
SSU2-300 RS-232/422/485
SSU2-400I RS-232/422/485
Key Features
Single port configurations
RS-232 or software-selectablen RS-232/422/485
Device enumerates itself as standard port
Baud rate up to 921 kbps
Full modem control and hardware and software flow control (RS-232)
Full-duplex or half-duplex modes (RS-422/485)
Bus powered, no external power required
3000V DC optical isolation option (SSU2-400I)
15kV DC ESD Immunity (SSU2-300/400I)
Surge and short cicuit protection
Terminal block connectors on RS-422/485 units
OS Support: Windows 2000/XP/Vista and Linux support
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